This will bring down HDFC's floating interest rates to 10.15 percent on loans of up to 3 million rupees and 10.40 percent on loans of more than 3 million rupees, it said in a statement.

HDFC's move follows a recent decision by the RBI to lower its key policy rate for the first time in nine months by 25 basis points to 7.75 percent to help support an economy set to post its slowest annual growth rate in a decade.